Highly Accurate Surface Hardness Testing With Green Sand Surface
Performance Tester Compact Design Easy Operation Results QR-SYS
Product Introduction
The Green Sand Surface Hardness Tester (QR-SYS) is a precision instrument designed to measure the surface hardness of green sand molds and cores. Accurate surface hardness data provides essential technical
parameters for optimizing molding processes, improving sand quality, and
preventing casting defects.
This tester is available in two models (B-type and C-type), each suitable for different testing requirements. With a simple
structure, reliable accuracy, and easy operation, the QR-SYS is
widely used in foundries, quality inspection labs, research institutions, and
educational facilities.
Key Features
High Accuracy
Measurement accuracy of ±5%, ensuring reliable results.
Pointer return to zero tolerance within ±1 degree.
Dual Model Options
Compact & Easy to Operate
Reliable Hardness Evaluation
Technical Specifications
| Parameter Name & Type | B Type | C Type |
|---|
| Compression stroke | 2.5mm | 2.5mm |
| Maximum load | 980g | 1500g |
| Pre-compression load | 50g | 180g |
| Spherical indenter size | R12.70mm | R1.2mm |
| Accuracy | ±5% | ±5% |
| Pointer return tolerance | ±1° | ±1° |
Applications
The QR-SYS Green Sand Surface Hardness Tester is widely applied in:
Foundry Industry – to evaluate green sand mold and core hardness.
Molding Process Optimization – provides essential technical parameters for sand quality
control.
Quality Inspection Centers – ensures consistent sand performance and defect prevention.
Scientific Research & Universities – used for teaching, experiments, and materials testing.
✅ Why Choose the QR-SYS?
Two model options for different hardness testing needs.
High accuracy with reliable pointer return mechanism.
Simple, durable, and easy-to-use design.
Essential tool for green sand process control and casting quality assurance.
